Comment 3 for bug 21190

(In reply to comment #2)
> Created an attachment (id=4052) [edit]
> strace for cube
>
> cube is not compiled with debug symbols. I tried running the program through
> gdb and also through strace and the
> program no longer crashed.

Ah, classic Heisenbug then. However, can you please try to build a
debugging-enabled version of cube and try again to run it under gdb?